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OpenLaw Elements

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Render React form components and sections from an OpenLaw template. This library provides a single component which decides what to render based on the OpenLaw data type and current values, and handles validation. Used internally across OpenLaw projects, it's great for getting a React app up and running quickly on the client with OpenLaw templates.

You're welcome to be creative and roll your own set of components, or submit a feature request!


npm install openlaw-elements



The example below shows usage in a bundled app (e.g. using Webpack), or create-react-app.

import React from 'react';
import ReactDOM from 'react-dom';
import { APIClient, Openlaw } from 'openlaw';
import OpenLawForm from 'openlaw-elements';
// our optional base styles - feel free to use them!
import 'openlaw-elements/dist/openlaw-elements.min.css';

// OpenLaw APIClient:
//  - used to fetch geo data in our `Address` field type
//  - to run against your own private OpenLaw instance: 'https://[YOUR.INSTANCE.URL]';
const apiClient = new APIClient('');
// You can login from a Node server (e.g. Express), and be sure to pass the `OPENLAW_JWT`  on to the client.
// If you require your users to have an account on your instance, create a login page on the client.

const { compiledTemplate } = Openlaw.compileTemplate('**Name**: [[First Name]] [[Last Name]]');
const { executionResult, errorMessage } = Openlaw.execute(compiledTemplate, {}, {}, {});
const variables = Openlaw.getExecutedVariables(executionResult, {});
// typically the parameters object will be updated in state via 
// an `onChangeFunction` handler (or in a state manager like Redux
// or MobX) throughout the lifetime of the app
const parameters = {};

// helpful for logging in development, or throwing exceptions at runtime
if (errorMessage) {
  console.error('Openlaw Execution Error:', errorMessage);

const onChange = (key, value) => console.log('KEY:', key, 'VALUE:', value);

const App = () => (

ReactDOM.render(<App />, document.getElementById('your-id-here'));

Available Props

You can check out our OpenLaw Elements docs for more details.

OpenLaw library dependency

As OpenLaw Elements depends on the openlaw package, we recommend always using the latest version.

Using our default styles

Our component comes with a separate file of base styles which you can include in your app JS (via an import) or HTML. If you decide to import the styles into your JS, be sure to add a way to import CSS into your bundle. As an example, using Webpack's css-loader + style-loader. If you are using create-react-app this is already done for you.

Including the styles

Via JavaScript import:

import 'openlaw-elements/dist/openlaw-elements.min.css';

If you'd like to load the styles via an HTML file, you can copy the path (or file):

  <!-- or your path -->

Overriding our styles

If you want to leave out our styles, that's completely OK. We've set up our components with simple classnames so you can target what you need to, easily. Just add your own stylesheet and take a look at what classes and elements you can style. We find the simplest way to prototype can be using browser developer tools.

Running the example app

Authenticating to the APIClient

If you would like to use our Address or input type, please authenticate by sending your OpenLaw login details to the npm start command: OPENLAW_PASSWORD=password npm start

NOTE: If you do not provide credentials the app will still run, but you will not be able to:

  • Select an Address lookup from the drop-down
  • See those values in the rendered preview HTML

Authenticating against your own instance

If you would like to use your own OpenLaw Private Instance to authenticate against, provide the OPENLAW_INSTANCE_NAME environment variable.


About the app

The example app (openlaw-elements/example) can help you gain ideas and understanding to build your own OpenLaw app in JavaScript and React. In contrast to the example app, the "Usage" section above intentionally leaves out more complex behavior to simply illustrate the required dependencies in order to use <OpenLawForm /> correctly.

We use Webpack to bundle a small app that changes the app's state tree every time an edit is made to the rendered <OpenLawForm />. Additionally, each time you click the "Run preview" or "Auto run" button, it will generate a preview of what the final document will look like at the top of the webpage.


git clone
cd openlaw-elements
npm install
npm start

// Now you can visit http://localhost:3001 and see the app running.

Current Roadmap (subject to change)

  • Address input type will be able to be used without the APIClient


See information about contributing here.


Copyright 2019 Aaron Wright, David Roon, and ConsenSys AG.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.